Which of the following are structures of the central nervous system? Check all that apply.

nerve cells outside the brain and spinal cord

brain

spinal cord

Match the digestive enzymes to the macro molecules they to digest. down fats into glycerol and fatty acids down carbohydrates into simple sugars down nucleic acids into nitrogenous bases and simple sugars down proteins into amino acids

Provide one reason why mitosis occurs.

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?